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The elastic and electromechanical properties of tetragonal BaTiO3 single crystals

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4 Author(s)
Li, Z. ; Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 ; Chan, S.‐K. ; Grimsditch, M.H. ; Zouboulis, E.S.

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From velocity of sound measurements, obtained using Brillouin scattering and ultrasound techniques, the elastic and piezoelectric constants at room temperature have been determined on high‐quality monodomain tetragonal BaTiO3 single crystals. The elastic constants are in fair agreement with those measured previously by the low‐frequency equivalent circuit method. However, the electromechanical properties are significantly different. It is suggested that high frequency relaxation may have an influence on the measurements of those parameters.  

Published in:

Journal of Applied Physics  (Volume:70 ,  Issue: 12 )